\begin{tabular}{l*{12}{D{.}{.}{-1}}}
                &\multicolumn{3}{c}{Ageism Explicit}                     &\multicolumn{3}{c}{Ageism Thermometer}                  &\multicolumn{3}{c}{Ageism Index}                        &\multicolumn{3}{c}{Ageism IAT Score}                    \\\cmidrule(lr){2-4}\cmidrule(lr){5-7}\cmidrule(lr){8-10}\cmidrule(lr){11-13}
                &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         &\multicolumn{1}{c}{(3)}         &\multicolumn{1}{c}{(4)}         &\multicolumn{1}{c}{(5)}         &\multicolumn{1}{c}{(6)}         &\multicolumn{1}{c}{(7)}         &\multicolumn{1}{c}{(8)}         &\multicolumn{1}{c}{(9)}         &\multicolumn{1}{c}{(10)}         &\multicolumn{1}{c}{(11)}         &\multicolumn{1}{c}{(12)}         \\
\midrule
Generational Grievances Index&    0.340\sym{***}&                  &    0.319\sym{***}&    0.178\sym{***}&                  &    0.176\sym{***}&    0.281\sym{***}&                  &    0.203\sym{***}&   -0.060\sym{*}  &                  &   -0.032         \\
                &  (0.056)         &                  &  (0.058)         &  (0.065)         &                  &  (0.066)         &  (0.063)         &                  &  (0.061)         &  (0.034)         &                  &  (0.035)         \\
\addlinespace
Personal Grievances Index&                  &    0.157\sym{***}&    0.076         &                  &    0.054         &    0.007         &                  &    0.342\sym{***}&    0.291\sym{***}&                  &   -0.079\sym{***}&   -0.069\sym{**} \\
                &                  &  (0.060)         &  (0.059)         &                  &  (0.068)         &  (0.069)         &                  &  (0.058)         &  (0.059)         &                  &  (0.030)         &  (0.032)         \\
\midrule
Observations    &      596         &      596         &      596         &      598         &      598         &      598         &      599         &      599         &      599         &      310         &      310         &      310         \\
Adjusted \(R^{2}\)&    0.060         &    0.013         &    0.062         &    0.012         &   -0.000         &    0.011         &    0.043         &    0.070         &    0.091         &    0.008         &    0.020         &    0.020         \\
\end{tabular}
